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Space- and time-like kaon electromagnetic form factors in perturbative QCD
  • ISSN号：1674-1137
  • 期刊名称：Chinese Physics C
  • 时间：2012.10.10
  • 页码：941-946
  • 分类：O572.341[理学—粒子物理与原子核物理;理学—物理] O572.243[理学—粒子物理与原子核物理;理学—物理]
  • 作者机构：[1]Institute of Particle Physics, Huazhong Normal University, [2]Key Laboratory of Quark & Lepton Physics, Ministry of Education
  • 相关基金：Supported by National Natural Science Foundation of China （10735080, 11075059）
  • 相关项目：重味物理唯象研究
作者： Jin Dan|Yang Ya-Dong|
关键词： 电磁形状因子, 量子色动力学, K介子, 时间, 空间, 微扰, 动力学分析模型, 实验数据, electromagnetic form factor, perturbative QCD, analytical running coupling, twist-3 corrections, IR finite gluon propagator
中文摘要：

We present a phenomenological analysis of the space- and time-like charged kaon electromagnetic form factors in factorized perturbative QCD (pQCD) by employing an analytic model for αs (Q2 ) and an infrared (IR) finite gluon propagator. In the space-like region, due to the lack of available experimental data above Q2 ～ 0.2 GeV2 , we only give our results for intermediate energies and make no comparison. In the time-like region, our results agree reasonably well with the available experimental data at moderate energies, including the CLEO data and the J/ψ result.

英文摘要：

We present a phenomenological analysis of the space- and time-like charged kaon electromagnetic form factors in factorized perturbative QCD （pQCD） by employing an analytic model for αs （Q2 ） and an infrared （IR） finite gluon propagator. In the space-like region, due to the lack of available experimental data above Q2 ～ 0.2 GeV2 , we only give our results for intermediate energies and make no comparison. In the time-like region, our results agree reasonably well with the available experimental data at moderate energies, including the CLEO data and the J/ψ result.

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期刊信息
  • 《中国物理C：英文版》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中国物理学会 中国科学院高能物理研究所 中国科学院近代物理研究所
  • 主编：王贻芳
  • 地址：北京市玉泉路19号（乙）
  • 邮编：100049
  • 邮箱：cpc@mail.ihep.ac.cn
  • 电话：010-88235947
  • 国际标准刊号：ISSN：1674-1137
  • 国内统一刊号：ISSN：11-5641/O4
  • 邮发代号:2-522
  • 获奖情况:
  • 2000年获中国科学院优秀期刊评比一等奖,中国期刊方阵“双百”期刊
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  • 被引量:189